Author: blass uri
Date: 00:40:01 01/29/00
Go up one level in this thread
On January 28, 2000 at 18:06:06, Torstein Hall wrote: >On January 28, 2000 at 17:57:46, Torstein Hall wrote: > >>On January 27, 2000 at 17:40:11, blass uri wrote: >> >>>On January 27, 2000 at 16:25:49, Torstein Hall wrote: >>> >>>>On January 27, 2000 at 06:44:50, blass uri wrote: >>>> >>>>>On January 27, 2000 at 05:35:01, stuart taylor wrote: >>>>> >>>>>>On January 27, 2000 at 02:18:23, Shanti wrote: >>>>>> >>>>>>>Hi >>>>>>> >>>>>>>Here it is :-) >>>>>>> >>>>>>>[Event "?"] >>>>>>>[Site "?"] >>>>>>>[Date "2000.01.21"] >>>>>>>[Round "2"] >>>>>>>[White "Soffer, Ram"] >>>>>>>[Black "Fritz 6"] >>>>>>>[Result "1-0"] >>>>>>>[ECO "A06"] >>>>>>>[PlyCount "49"] >>>>>>> >>>>>>>1. Nf3 c5 2. e3 Nf6 3. b3 d5 4. Bb2 Nc6 5. Bb5 Bd7 6. O-O e6 7. d3 Be7 8. Nbd2 >>>>>>>O-O 9. Qe2 a6 10. Bxc6 Bxc6 11. Ne5 Qc7 12. f4 b5 13. Nxc6 Qxc6 14. Nf3 Nd7 15. >>>>>>>Ne5 Nxe5 16. fxe5 c4 17. Bd4 b4 18. Rf2 c3 19. Raf1 a5 20. Qh5 Qe8 21. Rf6 Qb5 >>>>>>>22. R1f3 Rfc8 23. Qxf7+ Kh8 24. Qxe7 Qe8 25. Rxe6 1-0 >>>>>>> >>>>>>>Bye, Shanti >>>>>>> >>>>>>>On January 27, 2000 at 00:49:44, Jouni Uski wrote: >>>>>>> >>>>>>>>thanks Jouni >>>>>> >>>>>> >>>>>>Incredible! simple! instructive! Surely there was luck in it.He just made the >>>>>>right efforts, and it turned out very well. >>>>>> What were the main mistakes of computer, and what were the main anti-computer >>>>>>moves of Ram Sofer? >>>>>> We see that fritz abandoned his King, but was 14...Nd7 wrong? after that I >>>>>>don't think it would have been easy even for a human as black, but what did he >>>>>>do so bad before move 14? >>>>>> 21.Rf6!! is the final blow, but wasn't it a bit of luck that such a move >>>>>>existed? >>>>>> I myself wouldn't have known to have played 15.Ne5.(blocking own bishop and >>>>>>doubling pawns etc.but maybe the opening of f-file against weakly defended king >>>>>>with so little mobility-made it a sure thing) Was this distinctly >>>>>>anti-computer? >>>>>> Stuart Taylor. >>>>> >>>>>I think that 20...Qe8 was the decisive mistake. >>>> >>>>I think its lost far earlier. How do you improve on 20...a4 21.Rf6 axb3 22.axb3 >>>>g6 ( if 22...Qe8 23.R1f3 Ra1+ 24.Kf2 and prettu soon Rh3 and bye bye black. >>>>)23.Qh6 Ra2 24.R1f3 and its all over like in the game. >>> >>>after axb3 axb3 chessmaster prefers Qa6 expecting Rxf7 >>>if R1f3 Qa1+ Kf2?? Ra2 >>> >>>Uri >> >>Perhaps I was a bit fast. But I think black has it difficult if White improves >>the line 20...a4 with 21.Rf3 If now 21...Qa6 then 22.Rh3 wins after 22...h6 >>23.Rg3 Kh8 and again 24.Rh6! >>So if we go back to the position after 20...a4 21.Rf3 I think its difficult for >>black improve. White just has to time his attack after black defence so no >>"evil" checks come in from the a line. :-) >> >>Torstein > >Whoops, I mixed it up a bit as I forgot the 21..axb 22.axb in between. > >I think I got it right if I say it like : >But I think black has it difficult if White improves >>the line 20...a4 with 21.Rf3 If now 21.axb axb 22...Qa6 then 23.Rh3 wins after 23...h6 24.Rg3 Kh8 and again 25.Rf6! >So if we go back to the position after 20...a4 21.Rf3 >[D]r4rk1/4bppp/2q1p3/3pP2Q/1p1B4/1PpPPR2/2P3PP/5RK1 b - - 0 22 > >I think its difficult for black improve. White just has to time his attack after >black defence so no "evil" checks come in from the a line. :-) > >Torstein chessmaster6000(ss=10) cannot see a losing evaluation for black after 21.Rf3. The main line begin with 21...axb3 22.axb3 Qc7 23.Rxf7 Qd7 It now considers h6 for a long time and may changes its mind to h6. I do not see a win for white after h6 I gave it some hours to analyze but it could see axb3 axb3 Qc7 in a few minutes. Uri
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